Reinforced concrete construction for posts and columns.



J. RUBBLLO & J. SANTI. REINFORCED CONCRETE CONSTRUCTION FOB POSTS AND COLUMNS. APPLICATION FILED SEPT. 13, 1910.

987,172. C v Patented Mar.21,1911.

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' I g g UNITED sTAfrEs PATENT OFFICE.

Josn RUBELLO'ANDJUAN SANTI, onivinxrco; MEXICO.

REINFORCED c'oncnnrn CONSTRUCTION Eon ro'srs AND cotuims.

. Specification of Letters Patent. -Pa,tented lvlal', 21 1911.

Application filed September 13, 1910. Serial No. 581,832.

To all whom it may concern:

Be it known that we, Josli RUBnLLo and JUAN SANTI, subjects of the King of Italy,

' residing at Mexico city, Federal District,

Republic of'Mexico, have invented certain new and useful Improvements in Reinforced Concrete Construction for Posts'and Columns, of which the following is a specification.

Our invention relates to a reinforced concrete construction for hollow posts,.columns,"

pillars and similar construction made of cement or-concrete by molding, in which the reinforcing members consist of a plurality of metallic rings embedded concentrically in theconcrete and variably interspaced, all of the rings being united by wires oriron bars which run parallel through a number of perforations with which therings-are provided, or these wires may converge toward one end of the post in case that a somewhat conical form is desired. v

Concrete structures made in accordance with our system will possess. a high resistance to longitudinal pressure, and are therefore specially adapted for all kinds of poles.

In the drawing, Figure l representsa pole in elevation, part being broken away to show the collocation of the reinforcing rings and their connecting wires; Fig. 2 is a horizontal section of the pole wherein is seen embedded a ring; Fig. 3 is a; detail view; showing partof-a reinforcing ring, while Fig. .4 shows the skeleton composed of the rings and connecting wires, as they remain beforegfillin gfconcrete into the molding box.

Referring to the drawing we have illustrated, as an examplefa pole composed of several sections (1), each of which tapers toward, the point, and being manufactured of a cylindrical cover (2) of concrete, cement or other compound material, in which the rings are embedded, Said-ringsB,

which are preferably made of cast-iron, are provided around their circumferences with equidistant integral spherical protuberances or knobs 4c. The latter are provided with .openings or perforations 5, which are either cast therein ,or' subsequently bored, to permit the passage therethrough of the spaced Wires or rods 7. The rings soconstructed are economical in manufacture'and permit a li htand slender skeleton frame to be made with adequate strength and stability. Atoccasional points around the peripheries of the rings, as for instance, at four points indi which purpose are required a ameters at right angles to each other on the circumference, the protuberances or knobs 4: are extended radially to form tapered pins or spikes 6, of equal length, said spikes or pins acting as additional. reinforcing ele-' ments and 'positioning'means for the whole reinforcing structure in the post, and also being a centering means for the reinforcing structure when the post or column is beingcast,, by spacing the structure from the i-nterlor of the mold. The wires (7) which as already said may be "substituted by rods, run through the perforations (5) in therings (3) and thus erected make up the reinforcing skeleton, particularly shown in the Fig.4, in which all the wires run parallel of equal di intended for a pole orcolumn ameter throughout the entire length, and'for number of rings of exactly the same diameter.

,In some instances it is for many reasons convenient to build poles andvcolumns of a.

tapered form or in configuration like the Mannesman ,poles, and therefore it would be necessary to employ, at least in each section of the pole, rings of diflerent diameter though the pole .is molded in one piece; in.

this case the wires are given a slight curvature'between the adjoining rings of two sectionsof different diameter. For making poles of one tapered section' it is required to employ rings gradually decreasing in circumference, and the'perforations should be bored or otherwise provided at a slight inclination toward the center, so that the con-' necting wires may follow a' straight line inclined toward the top of the pole.

I Themold and core, necessary for carrying out our in'vention, 'do not form part of our and any form may be elected" and the core is easily the widerend of the the first being 2. Arei'nforc'e' for concrete columns, comprising in combination, a pluralilzy of spaoouter periphery of'th ring in order s ace .ing rings superposed in concentr c relation, the ring at a predetermined distanco om and a plurality of rods carried by said rings the mold.

"to-form a skeleton frame, said rings con- In'testimony whereof we haveafiixed our :5 sisting' of annular members provided with signatures in presence of twowitnesses.

integral knobs; apertured toreceive said rods" J L RUBELLOP inequidistant spaced relation, and exter- I JUAN SANTL nally provided with radially projected ta- Witnesses:

poi-ed pins of equal length to act as a con-i K.- GRANDJEAN,.

1 0 toringv means, said pins extending beyond the J 0513 Man;

Gopias of this patent inay be obtained for five cents each, by addressing the Commissioner o 1atents, I Washington, D. 0 

